Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cynnes
←
Welsh
cyn-
(prefix)
←
Welsh
tes
(prefix)
←
Proto-Indo-European
*tep-
(root)
→
Welsh
cynhesu
(affix)